[Machine] The Prophet ﷺ combined dhuhr (midday prayer) with asr (afternoon prayer), and maghrib (evening prayer) with isha (night prayer) during travel.  

«أَنَّ النَّبِيَّ ﷺ جَمَعَ بَيْنَ الظُّهْرِ وَالْعَصْرِ وَالْمَغْرِبِ وَالْعِشَاءِ فِي السَّفَرِ»  

[Machine] "That the Messenger of Allah ﷺ gathered in a meal that he undertook during a battle between Dhuhr and Asr and Maghrib and Isha. So I asked him, what led him to do that? He said, he intended not to burden his nation."  

«أَنَّ رَسُولَ اللَّهِ ﷺ جَمَعَ فِي سَفْرَةٍ سَافَرَهَا وَذَلِكَ فِي غَزْوَةٍ بَيْنَ الظُّهْرِ وَالْعَصْرِ وَالْمَغْرِبِ وَالْعِشَاءِ» فَقُلْتُ لَهُ فَمَا حَمَلَهُ عَلَى ذَلِكَ؟ قَالَ أَرَادَ أَنْ لَا يُحْرِجَ أُمَّتَهُ  

"If the Messenger of Allah ﷺ was setting out on a journey before the sun passed its zenith, he would delay Zuhr until the time of 'Asr, then he would stop and combine the prayer. If the sun passed its zenith before he set out, he would pray Zuhr and then set off. (Using translation from Nasāʾī 586)   

«كَانَ رَسُولُ اللَّهِ ﷺ إِذَا ارْتَحَلَ قَبْلَ أَنْ تَزِيغَ الشَّمْسُ أَخَّرَ الظُّهْرَ إِلَى وَقْتِ الْعَصْرِ ثُمَّ نَزَلَ فَجَمَعَ بَيْنَهُمَا وَإِذَا زَاغَتْ قَبْلَ أَنْ يَرْتَحِلَ صَلَّى ثُمَّ رَحَلَ»  

The Prophet ﷺ was engaged in the Battle of Tabuk. If he moved off before the sun had declined, he would delay the noon prayer till he would combine it with the afternoon prayer and would offer them together. If he moved off after the sun had declined, he would combine the noon and afternoon prayers, and then he proceeded; if he moved off before the evening prayer, he would delay the evening prayer; he would offer it along with the night prayer, he would delay the evening prayer; he would offer it along with the night prayer. If he moved off after the evening prayer, he would offer the night prayer earlier and offer it along with the evening prayer. Abu Dawud said: This tradition has not been narrated by anyone except by Qutaibah. (Using translation from Abū Dāʾūd 1220)  

«أَنَّ النَّبِيَّ ﷺ كَانَ فِي غَزْوَةِ تَبُوكَ فَكَانَ إِذَا ارْتَحَلَ قَبْلَ زَيْغِ الشَّمْسِ أَخَّرَ الظُّهْرَ حَتَّى يَجْمَعَهَا إِلَى الْعَصْرِ فَيُصَلِّيَهُمَا جَمِيعًا وَإِذَا ارْتَحَلَ بَعْدَ زَيْغِ الشَّمْسِ صَلَّى الظُّهْرَ وَالْعَصْرَ جَمِيعًا ثُمَّ سَارَ وَكَانَ إِذَا ارْتَحَلَ قَبْلَ الْمَغْرِبِ أَخَّرَ الْمَغْرِبَ حَتَّى يُصَلِّيَهَا مَعَ الْعِشَاءِ وَإِذَا ارْتَحَلَ بَعْدَ الْمَغْرِبِ عَجَّلَ الْعِشَاءَ فَصَلَّاهَا مَعَ الْمَغْرِبِ»  

The Apostle of Allaah ﷺ returned from ‘Arafah. When he came to the mountain path , he alighted, urinated and performed the ablution, but he did not perform it completely. I said to him Prayer? He said “The prayer will be offered ahead of you.” He then mounted. When he reached Al Muzdalifah he alighted performed the ablution, performed it well. Thereafter iqamah for the prayer was called and he offered the sunset prayer. Then everyone made his Camel kneel down at his place. Iqamah was then called for night prayer and he offered it but he did not pray between them. (Using translation from Abū Dāʾūd 1925)  

أَنَّهُ سَمِعَهُ يَقُولُ خَرَجَ رَسُولُ اللَّهِ ﷺ يَوْمَ عَرَفَةَ حَتَّى إِذَا كَانَ بِالشِّعْبِ نَزَلَ فَبَالَ ثُمَّ تَوَضَّأَ وَلَمْ يُسْبِغِ الْوُضُوءَ فَقُلْتُ لَهُ الصَّلَاةَ فَقَالَ ﷺ «الصَّلَاةُ أَمَامَكَ» فَرَكِبَ فَلَمَّا جَاءَ الْمُزْدَلِفَةَ نَزَلَ فَتَوَضَّأَ فَأَسْبَغَ الْوُضُوءَ ثُمَّ أُقِيمَتِ الصَّلَاةُ فَصَلَّى الْمَغْرِبَ ثُمَّ أَنَاخَ كُلُّ إِنْسَانٍ بَعِيرَهُ فِي مَنْزِلِهِ ثُمَّ أُقِيمَتِ الْعِشَاءُ فَصَلَّاهَا وَلَمْ يُصَلِّ بَيْنَهُمَا  

God willing, you would reach by tomorrow the fountain of Tabuk and you should not come to that until it is dawn, and he who amongst you happens to go there should not touch its water until I come. We came to that and two persons (amongst) us reached that fountain ahead of us. It was a thin flow of water like the shoelace. Messenger of Allah ﷺ asked them whether they had touched the water. They said: Yes. Allah's Apostle ﷺ scolded them, and he said to them what he had to say by the will of God. The people then took water of the fountain in their palms until it became somewhat significant and Messenger of Allah ﷺ washed his hands and his face too in it, and then, took it again in that (fountain) and there gushed forth abundant water from that fountain, until all the people drank to their fill. He then said: Mu'adh, it is likely that if you live long that you see what is here filled with gardens. (Using translation from Muslim 706c)   

أَخْبَرَهُ أَنَّهُمْ خَرَجُوا مَعَ رَسُولِ اللَّهِ ﷺ عَامَ تَبُوكَ فَكَانَ رَسُولُ اللَّهِ ﷺ يَجْمَعُ بَيْنَ الظُّهْرِ وَالْعَصْرِ وَالْمَغْرِبِ وَالْعِشَاءِ قَالَ فَأَخَّرَ الصَّلَاةَ يَوْمًا ثُمَّ خَرَجَ فَصَلَّى الظُّهْرَ وَالْعَصْرَ جَمِيعًا ثُمَّ دَخَلَ ثُمَّ خَرَجَ فَصَلَّى الْمَغْرِبَ وَالْعِشَاءَ جَمِيعًا ثُمَّ قَالَ «إِنَّكُمْ سَتَأْتُونَ غَدًا إِنْ شَاءَ اللَّهُ عَيْنَ تَبُوكَ وَإِنَّكُمْ لَنْ تَأْتُوهَا حَتَّى يَضْحَى النَّهَارُ فَمَنْ جَاءَهَا فَلَا يَمَسَّ مِنْ مَائِهَا شَيْئًا حَتَّى آتِيَ» قَالَ فَجِئْنَاهَا وَقَدْ سَبَقَ إِلَيْهَا رَجُلَانِ وَالْعَيْنُ مِثْلُ الشِّرَاكِ تَبِضُّ بِشَيْءٍ مِنْ مَاءٍ فَسَأَلَهُمَا رَسُولُ اللَّهِ ﷺ «هَلْ مَسَسْتُمَا مِنْ مَائِهَا؟ » قَالَا نَعَمْ فَسَبَّهُمَا وَقَالَ لَهُمَا مَا شَاءَ اللَّهُ أَنْ يَقُولَ ثُمَّ غَرَفُوا مِنَ الْعَيْنِ بِأَيْدِيهِمْ قَلِيلًا قَلِيلًا حَتَّى اجْتَمَعَ فِي شَيْءٍ ثُمَّ غَسَلَ رَسُولُ اللَّهِ ﷺ فِيهِ وَجْهَهُ وَيَدَيْهِ ثُمَّ أَعَادَهُ فِيهَا فَجَرَتِ الْعَيْنُ بِمَاءٍ كَثِيرٍ فَاسْتَقَى النَّاسُ ثُمَّ قَالَ رَسُولُ اللَّهِ ﷺ «يُوشِكُ بِكَ يَا مُعَاذُ إِنْ طَالَتْ بِكَ حَيَاةٌ أَنْ تَرَى مَا هَاهُنَا قَدْ مُلِئَ جِنَانًا»  

"The Messenger of Allah ﷺ prayed Zuhr and 'Asr together, and Maghrib and 'Isha' together, when there was no fear and he was not traveling." (Using translation from Nasāʾī 601)  

«صَلَّى رَسُولُ اللَّهِ ﷺ الظُّهْرَ وَالْعَصْرَ جَمِيعًا وَالْمَغْرِبَ وَالْعِشَاءَ جَمِيعًا فِي غَيْرِ خَوْفٍ وَلَا سَفَرٍ»  

Ibn 'Abbas reported that the Messenger of Allah ﷺ observed in Medina seven (rak'ahs) and eight (rak'ahs), i. e. (be combined) the noon and afternoon prayers (eight rak'ahs) and the sunset and 'Isha' prayers (seven rak'ahs). (Using translation from Muslim 705f)  

«أَنَّ رَسُولَ اللَّهِ ﷺ صَلَّى بِالْمَدِينَةِ سَبْعًا وَثَمَانِيًا الظُّهْرَ وَالْعَصْرَ وَالْمَغْرِبَ وَالْعِشَاءَ»